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WHEN A CHEMICAL
REACTION OCCURS, ENERGY
IS TRANSFERRED TO OR
FROM THE SURROUNDINGS -
AND THERE IS OFTEN A
TEMPERATURE
Exothermic reactions transferCHANGE.
energy to the surroundings.
The energy is usually transferred as heat energy, causing
the reaction mixture and its surroundings to become
hotter.…read more

Slide 3

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The temperature increase can
be detected using a
thermometer. Some examples
of exothermic reactions are:
·Combustion (burning)
·Many oxidation reactions, for example rusting
·Neutralisation reactions between acids and alkalis…read more

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Exothermic reactions can be used for everyday
purposes. For example, hand warmers and self-
heating cans for drinks (such as coffee) use
exothermic reactions.
When a flame burns it transfers heat to its
surroundings.…read more

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Khadija Siddiqui


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